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| From: | Viagra users report longer and better sex |
| Subject: | [Openvds-devel] Solutions for erection problems |
| Date: | Mon, 27 Oct 2008 05:12:49 +0000 |
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Viagra, Levitra and Cialis: How they work Viagra, Levitra and Cialis prevent the breakdown of nitric oxide, a chemical messenger that promotes relaxation and opening of the blood vessels that supply erectile tissue in the penis. Under the influence of nitric oxide, these vessels expand and stay dilated. Increased blood flow makes erectile tissue swell and compress the veins that carry blood out of the penis, resulting in a full erection. |
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